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Finding the Fourth Proportional to 411.36, 567.25 and 352.55

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Solution

The fourth proportional to 411.36, 567.25 and 352.55 is: 486.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.36 : 567.25 = 352.55 : x
  2. Step 2: Convert to fraction form
    411.36/567.25 = 352.55/x
  3. Step 3: Cross multiply
    411.36x = 567.25 × 352.55
  4. Step 4: Simplify right side
    411.36x = 199,986.51
  5. Step 5: Solve for x
    x = 199,986.51/411.36
  6. Step 6: Final answer
    x = 486.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.